Procom ML100HPA User Manual

Page of 23
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INSPECTING  BURNER
Figure 24 - Correct  Pilot  Flame
Pattern
Figure 25 - Incorrect  Pilot  Flame
Pattern
Figure 27 - Incorrect Burner  Flame
Pattern
Figure 26  - Correct  Burner  Flame
Pattern
ODS/PILOT AND BURNER
 
 Use   a vacuum   cleaner, pres-
surized  air, or a small,  soft
bristled  brush  to  clean.
CLEANING  BURNER
PILOT  AIR  INLET  HOLE
We  recommend   that  you  clean  the
unit  every  2,500  hours  of  operation
or  every  three  months.
We  also  recommend  that  you  keep
the  burner tube  and  pilot  assembly
clean and free  of  dust  and  dirt.  To
clean  these parts  we  recommend
using  compressed  air  no  greater
than 30  PSl.  Your  local  computer
store,  hardware store.  or  home  cen-
ter  may  carry compressed  air  in  a
can.  You  can use a  vacuum  cleaner
in  the  blow position.  If  using  com-
pressed  air  in a  can,  please  follow
the   directions on  the can. If  you don’t
follow  directions  on  the  can,  you
could  damage  the  pilot  assembly.
1.     Shut  off   the  unit,  including  the
pilot.  Allow  the  unit  to  cool  for
        at  least  thirty  minutes.
2.     Inspect  burner,  and pilot  for  dust
        and  dirt.
3.     Blow  air  through  the  ports/slots
        and  holes  in  the  bumer.
Also clean  the  pilot  assembly.  A
yellow  tip  on  the  pilot  flame indi-
cates  dust  and  dirt  in  the  pilot
assembly.  There  is  a  small  pilot  air
inlet  hole  about  two  inches  from
where  the  pilot  flame  comes  out  of
the  pilot  assembly  (see Figure 28).
With  the  unit  off , lightly blow air
through  the  air inlet hole. You may
blow  through  a drinking  straw if
compressed air is not available.
Figure 28  - Pilot  Air  Inlet  Hole
CABINET
Air  Passageways
     Use     a      vacuum     cleaner    or
        pressurized  air  to  clean.
Exterior
     Use  a  soft  cloth  dampened  with
        a  mild  soap  and  water  mixture.
        Wipe  the  cabinet  to  remove dust.
Check  pilot  flame  pattern  and
burner  flame  pattern often.
PILOT  FLAME  PATTERN
Figure  24  shows  a  correct  pilot
flame  pattern.  Figure  25  shows  an
incorrect  pilot   flame  pattern.  The
incorrect  pilot  flame  is  not  touching
thermocouple. This  will  cause  the
thermocouple  to  cool.  When  the
thermocouple  cools, the heater will
shut down. If pilot  flame pattern is
incorrect, as  shown  in  Figure 25.
 
 turn  heater off  (see  To  Turn  Off
       Gas  to  Appliance.  page  11,12
 
 see  Troubleshooting.  pages  14
        through 16.
 
   WARNING:  turn off heater
and  let  cool  before  cleaning.
 
 CAUTION:  you must keep control
areas,  burner,  and circulating  air
passageways  of heater  clean.  In-
spect these  areas  of  heater   before
each  use. Have  heater  inspected
yearly  by  a  qualified  service  person.
Heater  may  need  more  frequent
cleaning due to  excessive  lint from
carpeting,  bedding material,  pet  hair,
etc.
CLEANING  AND
 MAINTENANCE
BURNER  FLAME  PATTERN
Figure  26  shows   a  correct   burner
flame   pattern.  Figure 26  shows  an
incorrect  burner   flame  pattern.
If burner flame pattern is incorect, as
shown in Figure 27
 
turn heater off (see To Turn Off
Gas to Appliance pages 11&12)
 
see Troubleshooting (pages 14
through 16)
OPERATING HEATER
Continued
1.     Remove  lower  front  panel (see
Figure 7 page 7).
2.    Follow   steps  through  5  under
      Lighting Instructions on page12.
3.    With  control    knob    pressed in,
        strike  match.  Hold  match  to
        pilot until  pilot  lights.
4.      Keep   control   knob   pressed   in
for 30 seconds  after  lighting pilot.
After 30  seconds, release control
knob.Follow step 8 under Lighting
Instuctions on  page 12.
5.     Replace lower front panel.
MANUAL  LIGHTING
PROCEDURE
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